package cn.hiapi.core.basic.redis.serializer;

import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.JSONReader;
import com.alibaba.fastjson2.JSONWriter;
import com.alibaba.fastjson2.filter.Filter;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.SerializationException;

import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;

/**
 * @author AdinZ
 * @date 2020/11/11 10:31
 */
public class FastJson2JsonRedisSerializer<T> implements RedisSerializer<T> {
    public static final Charset DEFAULT_CHARSET = StandardCharsets.UTF_8;
    private final Class<T> clazz;
    public FastJson2JsonRedisSerializer(Class<T> clazz) {
        this.clazz = clazz;
    }
    static final Filter autoTypeFilter = JSONReader.autoTypeFilter(
             "cn.hiapi.*"
    );
    public byte[] serialize(T t) throws SerializationException {
        if (t == null) {
            return new byte[0];
        }
        return JSON.toJSONBytes(t, JSONWriter.Feature.WriteClassName);
    }

    public T deserialize(byte[] bytes) throws SerializationException {
        if (bytes == null || bytes.length == 0) {
            return null;
        }
        String str = new String(bytes, DEFAULT_CHARSET);
        return JSON.parseObject(str,clazz,autoTypeFilter);
    }


}
